We're dividing 21187954 by 239 
The aim is to understand the frequency of 239 in 21187954.

Advancing to step 1:
239 can be fit into 2 0 times, resulting in a remainder of 2.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 2 leaves us with 2.
Bring next digit (1) of the dividend behind the 2 and repeat the process: 21 / 239

Going ahead to step 2:
The number 239 fits into 21 0 times, leaving a remainder of 21.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 21, we get 21.
Take the next digit (1) from the dividend and append it to 21, then repeat: 211 / 239

Moving on to step 3:
When dividing 211 by 239, we get 0 with a remainder of 211.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 211, we get 211.
Fetch the next digit (8) from the dividend, attach it to 211 and continue: 2118 / 239

Going ahead to step 4:
When dividing 2118 by 239, we get 8 with a remainder of 206.
The next digit of our result is 8. 
Result so far: 8.0
If we take 1912 away from 2118, we end up with 206.
Include the next digit (7) from the dividend after 206, then repeat: 2067 / 239

Moving on to step 5:
239 can be fit into 2067 8 times, resulting in a remainder of 155.
Use 8 as the next digit of our solution. 
Result so far: 88.0
If we subtract 1912 from 2067, we get 155.
Bring next digit (9) of the dividend behind the 155 and repeat the process: 1559 / 239

Moving on to step 6:
When dividing 1559 by 239, we get 6 with a remainder of 125.
The next digit of our result is 6. 
Result so far: 886.0
The remainder is 125 after subtracting 1434 from 1559.
Append the next digit (5) from the dividend to 125 and continue with: 1255 / 239

Moving on to step 7:
1255 divided by 239 is 5 with a remainder of 60.
Use 5 as the next digit of our solution. 
Result so far: 8865.0
If we take 1195 away from 1255, we end up with 60.
Append the next digit (4) from the dividend to 60 and continue with: 604 / 239

Step 8:
If we divide 604 by 239, we get 2 and a remainder of 126.
Put 2 as the next digit of the answer. 
Result so far: 88652.0
The remainder is 126 after subtracting 478 from 604.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1260, and continue the process.

Going ahead to step 9:
When dividing 1260 by 239, we get 5 with a remainder of 65.
The next digit of our result is 5. 
Result so far: 88652.5
Subtracting 1195 from 1260 leaves us with 65.
Since there are no more digits in the dividend, we add a zero to the remainder making it 650, and continue the process.

Moving on to step 10:
If we divide 650 by 239, we get 2 and a remainder of 172.
Put 2 as the next digit of the answer. 
Result so far: 88652.52
The remainder is 172 after subtracting 478 from 650.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1720, and continue the process.

Let's proceed to step 11:
When dividing 1720 by 239, we get 7 with a remainder of 47.
The next digit of our result is 7. 
Result so far: 88652.527
The remainder is 47 after subtracting 1673 from 1720.
Since there are no more digits in the dividend, we add a zero to the remainder making it 470, and continue the process.

Going ahead to step 12:
239 goes into 470 1 times with a remainder of 231.
Record the quotient 1 as the next digit in the result. 
Result so far: 88652.5271
The remainder is 231 after subtracting 239 from 470.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2310, and continue the process.

Moving on to step 13:
239 goes into 2310 9 times with a remainder of 159.
The number 9 becomes the next digit in our result. 
Result so far: 88652.52719
Deduct 2151 from 2310 and we're left with 159.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1590, and continue the process.

Moving on to step 14:
If we divide 1590 by 239, we get 6 and a remainder of 156.
Record the quotient 6 as the next digit in the result. 
Result so far: 88652.527196
If we subtract 1434 from 1590, we get 156.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1560, and continue the process.

Advancing to step 15:
1560 divided by 239 is 6 with a remainder of 126.
Put 6 as the next digit of the answer. 
Result so far: 88652.5271966
Subtract 1434 from 1560 to get 126.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1260, and continue the process.

The final result is 88652.5271966 with a remainder of 1.26e-06.